[0/3] arm64: Add a build target for Flat Image Tree

Message

Simon Glass Oct. 26, 2023, 7:26 a.m. UTC

Flat Image Tree (FIT) is a widely used file format for packaging a
kernel and associated devicetree files. This series adds support for
building a FIT as part of the kernel build. This makes it easy to try
out the kernel - just load the FIT onto your tftp server and it will
run automatically on any supported arm64 board.

The script is written in Python, since it is easy to build a FIT using
the Python libfdt bindings. For now, no attempt is made to compress
files in parallel, so build the 900-odd files takes a while, about
6 seconds with my testing.

The series also includes a few minor clean-up patches.


Simon Glass (3):
  kbuild: Correct missing architecture-specific hyphens
  kbuild: arm64: Add BOOT_TARGETS variable
  arm64: boot: Support Flat Image Tree

 MAINTAINERS              |   7 +
 Makefile                 |  10 +-
 arch/arm64/Makefile      |   7 +-
 arch/arm64/boot/Makefile |   8 +-
 scripts/Makefile.lib     |  16 ++-
 scripts/make_fit.py      | 285 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 324 insertions(+), 9 deletions(-)
 create mode 100755 scripts/make_fit.py